CVE-2026-31797
📋 TL;DR
A heap out-of-bounds read vulnerability in iccDEV's CTiffImg::ReadLine() function allows attackers to cause memory disclosure or crashes by processing crafted TIFF images. This affects all systems using iccDEV libraries/tools for ICC color management prior to version 2.3.1.5. The vulnerability can lead to information disclosure or denial of service.
💻 Affected Systems
- iccDEV libraries and tools
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Memory disclosure could leak sensitive information from the application's memory space, potentially including credentials or other confidential data, followed by application crash.
Likely Case
Application crash (denial of service) when processing malicious TIFF images, with possible limited memory disclosure.
If Mitigated
No impact if proper input validation and memory protections are in place, but the vulnerability still exists in the code.
🎯 Exploit Status
Exploitation requires crafting a malicious TIFF image that triggers the out-of-bounds read. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.1.5
Vendor Advisory: https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-wh2p-cm3r-7hm3
Restart Required: Yes
Instructions:
1. Download iccDEV version 2.3.1.5 or later from the official repository. 2. Replace existing iccDEV installation with the updated version. 3. Restart any applications or services using iccDEV libraries.
🔧 Temporary Workarounds
Disable TIFF processing
allConfigure applications to avoid processing TIFF images through iccDEV's iccApplyProfiles function
Input validation
allImplement strict validation of TIFF images before passing to iccDEV libraries
🧯 If You Can't Patch
- Implement network segmentation to isolate systems using vulnerable iccDEV versions
- Deploy application-level firewalls to block or inspect TIFF image uploads to vulnerable systems
🔍 How to Verify
Check if Vulnerable:
Check iccDEV version using package manager or by examining installed files. Versions below 2.3.1.5 are vulnerable.Check Version:
iccdev --version or check package manager (e.g., dpkg -l | grep iccdev, rpm -qa | grep iccdev)Verify Fix Applied:
Verify iccDEV version is 2.3.1.5 or later and test TIFF image processing functionality.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing TIFF images
- Memory access violation errors in application logs
Network Indicators:
- Unusual TIFF image uploads to applications using iccDEV
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "access violation" OR "heap corruption") AND "TIFF"🔗 References
- https://github.com/InternationalColorConsortium/iccDEV/issues/656
- https://github.com/InternationalColorConsortium/iccDEV/pull/659
- https://github.com/InternationalColorConsortium/iccDEV/releases/tag/v2.3.1.5
- https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-wh2p-cm3r-7hm3
